Machine or mechanism for drawing yarn or thread into carriers.



F. A. WHITMOBE & W. DOUGHERTY. MACHINE 0R MECHANISM FOR DRAWING YARN 0RTHREAD INTO CARRIERS. APPLICATION FILED 00T.6, 1908.

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MACHINE 0R MEGHANISM FOR DRAWING YARN 0R THREAD INTO CARRIERS.APPLICATION mm: 0021.6, 1908.-

933,214. Patented Sejpt.7,1909.

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F. A. WHITMORE & W. DOUGHERTY.

MACHINE 0R MECHANISM FOR DRAWING YARN 0R THREAD INTO OARBIERS.

. APPLIOATION FILED 00T.6, 1908. 933,214.

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RA. WHITMORB & W. DOUGHERTY.

MACHINE 0R MECHANISM FOR DRAWING YARN 0R THREAD INTO cARRIRRs.

APPLICATION FILED 0OT.6, 1908.

Patented Sept. 7, 1909.

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UNITED STATES rgirENtr OFFICE.

FRED A. WHITMORE AND WILLIAM DOUGI-IERTY, OF PHILADELPHIA, PENNSYLVANIA,

ASSIGNORS TO CROMP'ION & KNOWLES LOOM WORKS, A CORPORATION OF MASSA-CI-IUSETTS.

MACHINE on MEcHANIsM FOR DRAWI NGYARM on THREAD INTO CARRIERS.

Specification of Letters Patent.

Patented Sept. '7, 1909.

Application filed October 6, 1908. Serial No. 456,368.

To all whom it may concern:

Be it known that we, FRED A. l VHrrMoRn and WILLIAM DOUGHERTY, citizensof the United States, both residing at Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have jointly invented certainnew and useful Improvements in Machines or Mechanism for Drawing Yarn orThread into Carriers, of which the following is a specification.

Our invention relates to a machine or mechanism for drawing yarn orthread into carriers or tubes, and to that class of ma: chines shown anddescribed in U, S. Letters Patent, No. 516,147, in which yarn or threadis drawn into carriers, which are used with spools, in looms for weavingtufted fabrics, I and our 1nvent1on part cularly relates to 1m-' Ourinvention consists in certain novelv features of construction of ourImprovements" as will be hereinafter fully described.

lVe have only shown in the drawings a dc:

tached portion of a drawing in machine of the class referred to, with.our IHIPIOVQJ' ments combined therewith, sufficient to en able thoseskilled in the art to understand the construction and operation of thesame.

Referring to the drawings :-Fi'gur e lis a side view of a portion of adrawing in ma chine of the class referred to, with our im/ provementsapplied thereto, looking in the direction of arrow at, Fig. 2. Fig. 2 1sa plan view, looking in the direction of; arrow 5, Fig. 1, showing someparts -not shown in Fig. 1, and someparts which are shown in said figureare left off. Fig. 3 shows, on an enlarged scale, the front of themachine with the stop motion mechanism, looking in the direction ofarrow 0, Fig. 1. Fig. 4 corresponds to Fig. 3, but shows some parts in adifferent position. Fig. 5 is a plan View of direction of arrow 6, Fig.7; some parts shown in Fig. 7 are left oif in this figure. Fig. 7 is afront view of the parts shown in Fig. 6, looking in the direction ofarrow 7, same figure. Fig. 8 is a plan view of the driving end, lookingin the direction of arrow g, Fig. 6. Fig. 9 shows in perspective, amodified construction of the threading and slackeningmechanism, shown inFigs. 1 and 2. Fig, 10 corresponds to Fig. 9, but shows some :of-theparts in'a different position.

In the accompanying drawings, 1 is the bed or base plate of the machine,having the frame2 secured-thereto. The bed plate 1 has brackets 3secured thereto, which carry the guide rods 4 and 5, see Fig. 1, whichform suitable supports or tracks for the spool carriage 6. The endpieces of the carriage G are adaptedtoireceivethe journals of the tuftyarn beam or spool 7, which is held in position by a lever 8, which ispivotally mounted at its lower end and yieldingly held by a helicallycoiledcontraction spring 8. The upper portion 6 of the carriage 6 ismade to receive the bar carrying the yarn tubes 9, of ordinaryconstruction, and which are placed with their-inner ends toward the comb9, in the usual way.

Theframe 2 has a bearing 2- for a shaft 10, which is operated bysuitable driving mechanism shown in Figs. 6 to 8, inclusive, and to behereinafter described. The shaft '10 carries two cam disks 11, and 12,see Fig. 2. One of these cam disks, as 11, operates a Q lever 13, whichhas its hub 13 pivotally mounted on a stud 14 on the base plate 1. Ahelically coiled contraction spring 15 attached to the lever 13 andto astationary part of. the machine, acts to hold the end of said lever inoperative engagement with the cam 11. The lever 13 has pivotally mountedon its end opposite from the cam 11, on a stud 13, a pawl 16 which isadapted; to engage and move a ratchet gear 17, in one direction, seeFigs. 3, 4, and 5. The ratchet gear 17 has connected therewith a pinion18, which meshes with and drives the rack 19 of the carriage '6, whichrack moves said carriage in one direction, after the yarn 20 has beendrawn into a tube 9, to place the next tube 9 with its comb 9 in thepath of the threading needle. The ratchet gear 17 and the pinion 18 areloosely mounted on a stud 21 on a stand 22 secured on the frame 2. Alsoloosely mounted on the stud 21 is the hub 23 of a feeler lever 23; theupwardly extending arm of said feeler lever 23 has a shield 23 thereonwhich extends over the ratchet gear 17 and is adapted to be moved in orout of the path of the pawl 16. The upper and outer portion of thefeeler lever 23 has attached thereto the feeler wire 24, see Figs. 3,and 41, which is guided in the V shaped piece 25, and is adapted'to feelfor the thread 20, when the thread is drawn over the lower portion ofthe V shaped piece 25, see Fig. 4. Then no thread 20 is drawn over thelower portion of the V shaped piece 25, as shown in Fig. 3, the feelerwire 24 drops to the lower part of the piece 25, and the shield 23,which is moved in under the pawl 16, prevents it from engaging theratchet gear 17. The lower horizontally extending arm of the lever 23carries a roll 23*, see Fig. 3, which travels on and engages a camshaped extension 26 on a slide 26, to move up the lever 23 and raise thefeeler 24K.

The slide 26 travels on a track 2", see Fig. 1, on the frame 2, and hasa stud 26 thereon, on which is pivotally mounted one end of a connector27, see Fig. 1; the other end of the connector 27 is pivotally connectedwith the lower end of a downwardly extending lever 28, which ispivotally mounted with its hub 28 011 a stud 29 on the frame 2, seeFig. 1. The lever 28 has a stud. 28 thereon, on which is mounted a roll30 which travels in a cam groove in one side of a cam 31, and isoperated by said cam, which has its hub 31 mountedon the driven shaft12, see Fig. 2. The cam 31 also has thereon a crank pin 31", to which ispivotally connected the boss 32 on one end of the connector 32. Theother end of the connector 32 is pivotally connected to a stud 33 on aslide 33, see Fig. 1, which is adapted to travel in the way or trackportion 2 on the frame 2. The slide 33 has secured thereto the inner endof a yarn or thread needle 34. The needle 34, is hooked at its outer end34, see Fig. 1, and is supported in and connected to a guide arm 35,secured to the lower slide 26, see Fig. 1.

When the upper slide 33 moves forward, that is to the left in Fig. 1,the lower slide 26, operated by the cam 31 through connector 27, alsomoves with the slide 33, and the needle 34 is guided into the comb 9 onthe inner side of the tube 9, and goes through the tube 9, preparatoryto catching the yarn 20,'as shown by broken lines in Fig. 1. The lowerslide 26 remains in its forward position until the needle 34 has beenmoved back through the tube 9, and drawn the thread 20 over the V shapedpiece 25. By this time the slide 33, through the rotation of the cam 31and the connector 32, has moved far enough back to allow the feeler wire24 to feel for the yarn 20, see Fig. 4-. If the yarn 20 is there itholds the feeler 21 up, as shown in Fig. a, so that the pawl 16 willengage the ratchet 17 and move the carriage 6 one tooth. to carry thenext tube 9 into the path of the threading needle 34. In case the yarn20 is not in the path of the feeler wire 24, said feeler will drop tothe bottom of the V shaped piece 25, as shown in Fig. 3, and allow theshield 23. on the feeler lever 23 to lift the pawl 16, so that it willnot engage the ratchet 17, see Fig. 3, and the carriage 6 will remain atrest. As the slide 26 moves back farther, it causes, by reason of thecam shaped surface 26 on said slide, see Fig. 5, the arm 36, which ispivotally mounted on a stud 37 and carries a needle 38, to move to theright or outwardly, as shown by broken lines in Fig. 1, against theaction of the helically coiled contraction spring 39. The movement ofthe needle 38 carries the ends of the yarn 20 away from the feeler wire24-, and out of the needle 3st, to have said needle ready for the nextoperation. The advantages of this construction are, that the needle forthr ading the yarn goes through a tube 9 until it gets a thread, it maybe once, or more than once, but the carriage 6 remains stationary, anddoes not move forward until there is a thread in each tube, andtherefore no reversing mechanism is required, which has heretofore beenused, and is shown and described in Patent, No. 516,174, above referredto.

Extending upwardly from the frame 2 and secured thereon, is a bracket orstand 35), which carries a stud 39, on which is pivotally mounted alever 10 carrying a hook wire guide 40, see Fig. 1, located directlyover the tube frame or carriage 6, when the hook wire guide 40 is in theposition shown by full lines in Fig. 2. A spring 10 acts to moveinwardly the hook guide 40'.

In operating the machine, the operator takes the end of the yarn 20 fromthe spool 7, and places it in the hook guide :10, as shown in Fig. 1,then as the needle 3. with the slide 33 moves forward and arrives at itsouter position, shown by dotted lines in Fig. 1, a projection 32 on theconnector 32 is adapted to engage an extension 4-0" on the hook lever4-0, and as the crank pin 31 on the cam 31 moves from its lower positionto its front position, the projection 32 will engage and move down, thehook lever 46 which carries the hook guide 40, and cause the outer endof said guide to pass over and across the end of the yarn needle 34-, asshown by broken lines in Fig. 2, so that as the yarn needle 34 movesback with the slide 33, it hooks the yarn 20 and draws it through a tube9.

The cam 12 on the driving shaft 10 operates a lever 41, the hub 11 ofwhich is pivotally mounted on a stud 42 on the base plate 1, see Fig. 2.The other end of the lever 41 has pivotally mounted thereon an to moveforward, the slackening mechanism,

which operates the finger or wire 47, starts from its backward positionshown by full lines in Fig. 2, and is moved forward by the lever 41, andguided by the cam portion 46 on the extension 46. As the arm 43 movesforward toward the yarn hook 40 in which the yarn is laid, the wire 47comes under the yarn 20, and after the end of the wire 47 is got underthe yarn, the cam 46 is so shaped, that as the lever 41 is movedforward, it causes the wire 47 to move out toward the front of themachine, causing the thread 20 to have a certain amount of slack, asshown by broken lines in Fig. 2. As soon as the needle 34 hooks the yarn20, the wire 47 immediately returns to its inoperative position, leavinga slack between the spool 7 and the threading needle 34, to prevent theyarn from sliding out of the needle 34, while the needle is passingthrough a tube 9.

The advantages of the threading mechanism above described will bereadily appreciated by those skilled in the art. It will be understoodthat there is a largehook guide 40, always in practically the sameposition and handy for the operator, and at rest, so that aninexperienced operator can readily hook the yarn, for the operator hastime while the thread needle 34 is moving from its extreme forwardposition to its rear position, and then to its forward position again.Whenever it has been necessary for the operator to place the yarn ontothe threading needle itself, during the time the needle was coming outof the tube, the operator was very liable to miss the threading of theneedle on a high speed running machine.

Referring to Figs. 6, 7, and 8 of the drawings, in said figures is.shown an improved shipping mechanism for the threading machine shown anddescribed in Patent, No. 516,147, above referred to, which shippingmechanism we will now describe. The disk 48, which is mounted on theshaft 10, has a friction surface 48 thereon, and is adapted to beengaged and operated by a pulley 49, when the pulley is moved intocontact with the friction disk 48 by a fork clutch lever 50, whichextends into the grooved hub 49 on the pulley 49. The hub 50 of theclutch lever 50 is fast on a rock shaft 51, see Fig. 6,

which shaft is loosely mounted in suitable bearings 1" on the bed orbase plate 1. The other end of the rock shaft 51 has fast thereon thehub 52 of an upwardly extend.- ing cam lever 52, see Fig. 7. The upperinclined end 52 of the lever 52 is adapted to engage with and beoperated by a cam surface 53, in this instance on the side of a ratchetgear 54. The hub 54 of the ratchet gear 54 is loosely mounted on a stud55 on a stand'56. Also loosely mounted on the stud 55 is the hub 57 ofan angle lever 57. On the upwardly extending arm of the angle lever 57,on a stud 57 is pivotally mounted a pawl 58 which is adapted to engagewith the teeth 011 the ratchet gear 54 to operate said ratchet gear inone direction, when the angle lever 57 is operated by a suitable treadlemechanism, not shown, connected to a rod 59, which is connected at itsupper end to theangle lever 57. A helically coiled contraction spring 60is attached at one end to the lever 57 and at its other end to an ear 1on the base plate 1, and acts to move the angle lever 57 against theaction of the operator on the treadle, not shown. Every time the anglelever 57 is rocked, through the operation of the treadle mechanism, thepawl 58 will turn the ratchet gear 54 oneeighth of its revolution, tobring a high or low point on the cam 53 in engagement with the lever 52,and cause, through cam arm 52, the shaft 50 to rock. A helically coiledcontraction spring 61 is connected at one end to an upright lever 62,which has its hub 62 fast on the shaft 51, and at its other end to astationary part of the frame, see Fig. 7, and acts to hold the cam lever52 against the cam 53. A high point on the cam 52 moves the drivingpulley away from the friction disk 48, as shown in Figs. 7, and 8, and alow point on the cam 52 causes the driving pulley 49 to engagethe'friction disk 48, to operate the machine. A pawl or latch 63 1spivotally mounted ,on a stud 64 and has a weighted extension 63, whichact-s to bring the latch 63 in engagement with the teeth of the ratchet54, 'to hold said ratchet, see Flg. 6, and prevent said ratchet fromturning backward.

In Figs. 9 and, 10, of the drawings, is shown a modified'construction ofthe thread slackening mechanism previously described herein. In themechanism shown in said Figs. 9, and 10, the lever 41, and the slack-120 ening needle mechanism connected therewith, shown in Fig. 2, is doneaway with, and a needle lever 65, which is pivotally mounted on the topof the stand 39, is substituted therefor. The lower lever or finger 12540, which. carries the hook guide 40, is operated as described above, bythe extension 32 on the connector 32. The lever 40 has two extensions 40thereon, adapted to engage the portion 65 on the lever 65, on each 130side of said lever, allowing a movement of said lever between saidextensions. Extending out from the part 65, and loosely held therein, isthe downwardly extending needle 66, which is held in place in the part65 by a block or collar 67 attached to the needle 66 by a screw 68. Theneedle 66 has a loop 66 formed therein, through which passes the hookguide 40. The lower part of the needle 66 has a hook 66 thereon, whichextends below the threading needle 3et. hen the thread 20 is hooked intothe hook guide 4.0, and the extension 82* on the connector depresses thelever 40, as above described in connection with Figs. 1, and 2, thelever &0 will be moved to the position shown in Fig. 10, and theextension 40 will cause a partial rotation of the lever (35, and also ofthe guide 40, which passes through the loop (36 on the wire 66, and willcause the wire 56 to rotate, and the hook 66 thereon will catch the yarn20, to make the slack of the yarns, as shown in Fig. 10. The furthermovement of the threading needle 34; and the slide 33, and thedisengagement of the extension 32 from the lever 40, will allow bothlevers 4.0, and 65, and the needles or wires 66, and 40, to return totheir inoperative position.

It will be understood that the details of construction of ourimprovements may be varied if desired, and they may be adapted to beused on machines of the class referred to of different construction.

Having thus described our invention, what we claim as new and desire tosecure by Letters Patent is 1. In a machine for drawing yarn or I threadinto carriers or tubes, a series of tubes arranged side by side, meansto support and move said tubes longitudinally, a reciprocating hook,means to cause said hook to pass through said tubes, one tube at a time,a guide over which the yarn is placed by the operator, to automaticallycarry a thread of yarn into the path of said reciprocating hook, toallow said hook to catch the yarn and draw it through a tube.

2. In a machine torv drawing yarn or thread into carriers or tubes, adrawing in hook, mechanismto reciprocate said hook, a support for thecarriers or tubes, means to advance said carriers or tubes step by step,and means to detect the absence of yarn in said hook, after it has beenwithdrawn from a tube, and means to prevent the advance of said carriersor tubes when the yarn is missing in said hook, after it has beenwithdrawn from the tubes.

3. In a machine for drawing yarn or thread into carriers or tubes, aseries of carriers or tubes adapted to receive tufted yarn, a supportfor said series of carriers or tubes, a drawing in hook, means toreciprocate it, a guide for the hook as it approaches the mouth of andis about to enter a carrier or tube, a detector to detect the yarn insaid hook, after it has been withdrawn from the tube, and a vibratormechanism under the control of the detector to advance a tube step bystep.

4:. In a drawing in machine of the class described, a series of carriersor tubes connected together side by side, a longitudinal sliding supportor carrier therefor, a hook adapted to enter the tubes, one tube at atime, and a guide to automatically carry the yarn into the path of saidhook, when said hook has entered one of said tubes.

5. In a drawing in machine of the class described, a series of tubesarranged side by side, means to support and move said tubeslongitudinally, a reciprocating hook, means to cause said hook to passthrough said tubes, one tube at a time, a guide over which the yarn isplaced by the operator to automatically carry a thread of yarn into thepath of said reciprocating hook to allow said reciprocating hook tocatch the yarn and draw it through the tube, and a finger or wire toslack the thread.

6. In a drawing in machine of the class described, a series of tubes,arranged side by side, a support for the same, means to move the tubeslongitudinally, a reciprocating hook, means to cause said hook to passthrough the tubes, one tube at a time, a guide to carry the thread intothe path of said reciprocating hook, and means to detect the presence orabsence of yarn in said hook, at each reciprocation thereof, andconnections between said detecting means, and said tube feeding means.

7. In a drawing in machine of the class described, a series of carriersor tubes'for yarn, arranged side by side, means to advance said tubeslongitudinally, a reciprocating hook to enter and pass through saidtubes, one tube at a time, a guide, over which a thread is placed by theoperator, to carry the yarn into the path of the reciprocating hook, andmeans to detect the absence of yarn in the reciprocating hook, at eachreciprocation thereof, and a finger or wire to slack the thread.

FRED A. W'HITMORE. WILLIAM DOUGHERTY. Vitnesses Row. G. Fos'rnn, WILLIAMB. PHELPS.

